JP2016075111A - Exterior wall panel, and filling method for sealant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exterior wall panel and a filling method for a sealant suited for positioning a finished surface of the sealant deeper inside than the exterior wall panel surface.SOLUTION: An exterior wall panel 11 has a joint part 3 formed between the adjacent exterior wall panels 11, the joint part having a wet-type sealant 51 filled thereinto. The exterior wall panel includes: a first tape 81 adhered from a corner 12 on a front surface side of an edge surface of the exterior wall panel 11 to a position inside in a depth direction by a prescribed dimension, the first tape covering an area 41 not in contact with the wet-type sealant; and a second tape 82 adhered at a location further inside than an inner side edge 81a of the first tape 81, the second tape covering an area 42 in contact with the wet-type sealant.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an outer wall panel and a sealing material filling method.

  As one of architectural forms such as a residential building, there is a case where the outer wall of a building is constituted by a plurality of outer wall panels arranged in a plane. In such an outer wall structure, it is usual to fill a gap formed between adjacent outer wall panels, that is, a joint, with a sealing material in order to ensure waterproofness and the like.

  When a sealing material is loaded on the joint, it is conventionally known to use a curing sheet (protective tape). For example, in the following Patent Document 1, a sealing material is loaded on a joint using a curing sheet adhered to an outer wall panel (building material panel). More specifically, the curing sheet includes a surface sheet adhered to the outer wall panel surface and an end surface sheet adhered to the outer wall panel end surface, and the end surface sheet is a boundary line between the end surface sheet and the surface sheet. It is comprised so that it can isolate | separate in the position of the mark boundary line provided in. With such a curing sheet attached, the sheet is transported to the construction site, and only the end face sheet is peeled off along the mark boundary line immediately before the construction, and the sealing material is loaded on the joint.

JP 2001-323631 A

  By the way, in the loading method of the sealing material described in the said patent document 1, the sealing material is filled to the surface of the outer wall panel. Depending on the outer wall structure composed of a plurality of outer wall panels, the finished surface of the sealing material may be a position recessed from the surface of the outer wall panel, but for filling the sealing material in such a recessed position, It is not described in the said patent document 1. Moreover, although the said patent document 1 is described about the surface sheet stuck on the surface of the outer wall panel, the said surface sheet only has a function which prevents the dirt on the outer wall panel surface, and is a sealing material. It did not have a function as a guide when filling.

  This invention is made | formed in view of such a subject, and provides the outer wall panel and the filling method of a sealing material suitable when making the finishing surface of a sealing material into the position back | innered from the outer wall panel surface. For the purpose.

  In order to solve the above problems, an outer wall panel according to the present invention is an outer wall panel in which a joint portion filled with a wet sealant is formed between adjacent outer wall panel bodies, and the end face of the outer wall panel body A first tape that is attached from a corner on the surface side to a position that is recessed by a predetermined dimension and covers the non-contact area of the wet seal material, and a position that is further back than the side edge on the back side of the first tape And a second tape that covers the wet sealant contact region.

  In the outer wall panel of the present invention, since the first tape covers the wet sealant non-contact area, the wet sealant can be prevented from protruding into the wet sealant non-contact area, and the outer wall panel is finished beautifully. Can do. Moreover, since the 2nd tape has covered the wet sealing material contact area | region, the contamination to a wet sealing material contact area | region is aimed at, and adhesion | attachment (water stop) by a wet sealing material can be performed reliably. In addition, the first tape can be used as a guide for filling the wet seal material, and workability can be improved. In addition, since the wet sealant is filled in a position further to the back side than the side edge on the back side of the first tape that is attached to a position that is recessed by a predetermined dimension from the outer wall panel surface, the finished surface of the wet seal material Can be set to a position deeper than the outer wall panel surface.

  In the outer wall panel according to the present invention, it is also preferable that the first tape and the second tape are separated in advance.

  In this preferred embodiment, the first tape and the second tape are separated in advance, so that the linearity of the side edge of the first tape is maintained (does not become loose or twisted), and before the wet sealing material is filled. It is possible to prevent the first tape from peeling off at the stage.

  In the outer wall panel according to the present invention, it is also preferable that the second tape is stuck so as to overlap the first tape.

  In this preferred embodiment, since the second tape is attached so as to overlap the first tape, it is possible to suppress the peeling of the first tape, and to prevent intrusion of dust and the like due to the peeling of the first tape. Can be suppressed.

  In the outer wall panel according to the present invention, a protruding corner portion or an entering corner portion is formed on the end surface of the outer wall panel main body, and the side edge on the back side of the first tape is the protruding corner portion or the entering corner portion. It is also preferable that it is stuck so as to coincide with the corner.

  In this preferable aspect, when the protruding corner portion or the entering corner portion sticks the first tape, it becomes an index of positioning, and the first tape attaching operation can be performed efficiently.

  In the outer wall panel according to the present invention, it is also preferable that a primer is applied to the wet sealant non-contact region, and the second tape is stuck on the primer.

  In this preferred embodiment, since the primer is applied to the wet sealant contact area and the second tape is stuck on the primer, it is possible to suppress contamination of the primer which is likely to adhere dust such as ALC powder. can do.

  In the outer wall panel according to the present invention, it is also preferable that the primer is applied after the first tape is attached.

  In this preferred embodiment, since the primer is applied after the first tape is adhered, the primer can be prevented from protruding in the region where the first tape is adhered, and the outer wall panel can be finished beautifully. it can.

  In the outer wall panel of the present invention, the joint portion has a side surface portion and a bottom surface portion that form a U-shaped concave portion in cross section, and the second tape is attached from the side surface portion to the bottom surface portion. It is also preferable that

  In this preferable aspect, since the second tape is stuck from the side surface portion to the bottom surface portion of the joint portion, a corner knife (valley portion) formed by the bottom surface portion and the side surface portion, for example, a cutter knife or the like The bottom surface side of the second tape can be left by cutting the second tape using. For this reason, it can prevent that a wet sealing material adheres to a bottom face part and a side part (three face adhesion).

  In the outer wall panel according to the present invention, the first tape and the second tape are integrally formed of a transparent material, and the wet sealing material non-contact area and the wet sealing material contact area It is also preferable to provide a separation mechanism on the boundary line.

  In this preferred embodiment, since the first tape and the second tape have transparency, the separation mechanism is aligned and pasted on the boundary line between the wet seal material contact area and the wet seal material non-contact area. Work can be made easier.

  Further, in the outer wall panel according to the present invention, the first tape and the second tape are integrally formed, and the boundary between the wet seal material non-contact area and the wet seal material contact area is at a corner. It is also preferable that it is set.

  In this preferable aspect, since the first tape and the second tape are integrally formed, the attaching operation can be facilitated. In addition, since the boundary between the wet sealant non-contact area and the wet sealant contact area is set at the entrance corner, the first tape and the second tape can be removed by applying a cutter such as a cutter knife to the entrance corner. The second tape can be easily and accurately separated.

  Moreover, in the outer wall panel which concerns on this invention, it is a filling method of the sealing material with which the joint part formed between adjacent outer wall panel main bodies is filled, Comprising: The outer wall panel of any one of Claims 1-9 Attaching to the outer periphery of the building to form an outer wall, peeling the second tape, filling the wet sealant to the vicinity of the side edge on the back side of the first tape, And a step of peeling off the first tape.

  ADVANTAGE OF THE INVENTION According to this invention, when making the finishing surface of a sealing material into the position which was deeper than the outer wall panel surface, the filling method of an outer wall panel and a sealing material suitable for it can be provided.

It is sectional drawing which shows schematic structure of the joint part formed between the outer wall panels in 1st embodiment of this invention. 2A to 2F are cross-sectional views schematically showing a sealing material filling method in the first embodiment of the present invention. It is sectional drawing which shows schematic structure of the joint part formed between the outer wall panels in 2nd embodiment of this invention. 4A to 4E are cross-sectional views schematically showing a sealing material filling method according to the second embodiment of the present invention. It is sectional drawing which shows schematic structure of the joint part formed between the outer wall panels in 3rd embodiment of this invention. It is sectional drawing which shows schematic structure of the joint part formed between the outer wall panels in 4th embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  First, the structure of the outer wall panel 11 (outer wall panel main body) in 1st embodiment of this invention is demonstrated, referring FIG. FIG. 1 is a cross-sectional view showing a schematic configuration of a groove 3 (joint portion) formed between adjacent outer wall panels 11.

  In FIG. 1, the upper side of the outer wall panel 11 is the outside air side and the lower side is the indoor side. In the following description, the upper side (upward direction) of the outer wall panel 11 in FIG. 1 is referred to as “front side (front direction)”, and the lower side (downward direction) of the outer wall panel 11 in FIG. 1 is referred to as “back side (back direction)” or “back side (back direction)” of the outer wall panel 11. I will do it. Further, the center side (direction toward the center side) of the outer wall panel 11 is referred to as “inside (center direction)” of the outer wall panel 11, and the end side of the outer wall panel 11 is referred to as “outer side” of the outer wall panel 11. To do.

  The outer wall panel 11 is a rectangular plate-like member made of, for example, generally distributed ALC (Autoclaved Light-weight Concrete), and is mounted side by side on the outer peripheral portion of the steel structure building. It constitutes. Other specific examples of the outer wall panel 11 include PCa plate, GRC, extrusion-molded cement plate, ceramic siding, metal siding, painted steel plate, metal panel, glass, stone, and the like.

  As shown in FIG. 1, the edge portion on the surface side of the outer wall panel 11 is cut out, and a plurality of outer wall panels 11 are connected to form a groove 3 between adjacent outer wall panels 11. . A step portion 312 is formed in the groove 3 as described later (see FIG. 1 and the like). The step portion 312 is formed on both side surfaces of the groove 3 so as to narrow the groove 3 from the middle (see FIG. 1 and the like). By such a stepped portion 312, the groove 3 is partitioned into a first groove portion 31 on the front surface side and a second groove portion 32 on the back side (bottom surface side). In this case, as is apparent from the drawing, the second groove portion 32 is formed narrower than the first groove portion 31 (see FIG. 1 and the like).

  The first groove part 31 and the second groove part 32 will be further described. As shown in FIG. 1, both side surfaces of the first groove portion 31 (surfaces on the surface side in the groove 3 between adjacent outer wall panels 11) correspond to the chamfered portion 311 in a cross-sectional view. The second groove portion 32 formed on the back side of the first groove portion 31 has a pair of side surface portions 321 and a bottom surface portion 322 that form a concave portion having a U-shape in cross section. In other words, in a cross-sectional view, both side surfaces of the second groove portion 32 (surfaces on the back side in the groove 3 between the adjacent outer wall panels 11) correspond to the side surface portion 321 and the bottom surface of the second groove portion 32 corresponds to the bottom surface portion 322. To do.

  Although details will be described later, a primer 61 is applied to the second groove portion 32, and a sealing material (not shown in FIG. 1) is placed on the primer 61. As described above, in the present embodiment, the seal material is placed in the second groove portion 32, and the seal material is not placed in the first groove portion 31. In the present embodiment, a region where the sealing material is not placed (a region where the sealing material does not come into contact), that is, a region including the chamfered portion 311 and the stepped portion 312 (from the corner 12 on the outer wall panel 11 surface side to the back surface of the outer wall panel 11). The area up to a position recessed by a predetermined dimension toward the side) is referred to as a wet sealing material non-contact area 41, and is an area where the sealing material is placed (an area that does not contact the sealing material), that is, the side surface portion 321 and the bottom surface portion 322. And a region including the wet sealant contact region 42 (a region from the corner 12 of the outer wall panel 11 to a position further to the back side than the position recessed from the corner 12 of the outer wall panel 11 by a predetermined dimension). I will call it.

  In addition, the surface including the chamfered portion 311, the stepped portion 312, and the side surface portion 321 in the groove 3 corresponds to the “end surface” of the outer wall panel 11 in the present invention. The said end surface is arrange | positioned facing both sides of the groove | channel 3 by sectional view. Further, the shapes of the chamfered portion 311, the stepped portion 312, the side surface portion 321, and the bottom surface portion 322 are not limited to the planar shape as shown in FIG. 1. For example, the chamfered portion 311 and the side surface portion 321 have grooves. 3 (first groove portion 31 and second groove portion 32) may be configured as a curved surface shape so as to be narrow from the middle, and various shapes can be selected.

  Then, the 1st tape 81 and the 2nd tape 82 which are affixed on the groove | channel 3 formed between the adjacent outer wall panels 11 mentioned above are demonstrated.

  As shown in FIG. 1, the 1st tape 81 is stuck so that the wet sealing material non-contact area | region 41 (the chamfering part 311 and the step part 312) may be covered. In other words, the first tape 81 is attached to the step portion 312 formed at a position recessed by a predetermined dimension from the corner 12 on the surface side of the outer wall panel 11 toward the back surface side of the outer wall panel 11.

  The second tape 82 is attached so as to cover the wet sealing material contact region 42 (side surface portion 321 and bottom surface portion 322). In other words, the second tape 82 is further further than the step portion 312 from the step portion 312 formed at a position recessed from the corner 12 on the surface side of the outer wall panel 11 toward the back surface side of the outer wall panel 11 by a predetermined dimension. It sticks to the side part 321 and the bottom face part 322 which were formed in the position of the back side.

  The first tape 81 will be further described. The side edge 81a on the far side of the first tape 81 is aligned with the protruding corner C2 (outer end of the step 312) formed by the intersection of the side surface 321 and the step 312. One tape 81 is preferably attached. Further, the side edge 81a on the back side of the first tape 81 coincides with a corner C3 (inner end of the step 312) formed by the chamfered portion 311 and the step 312 intersecting. It is preferable that it is stuck. In this embodiment, the protruding corner portion C2 (top portion) or the entering corner portion C3 (valley portion) includes the wet sealing material non-contact region 41 (the chamfered portion 311 and the step portion 312) and the wet sealing material contact region 42 (side surface). Part 321 and bottom part 322). By setting the protruding corner portion C2 or the entering corner portion C3 in this way, the first tape 81 can be used as a guide for positioning when the first tape 81 is attached to the wet sealant non-contact region 41. The attaching operation of the tape 81 can be performed efficiently.

  The first tape 81 is separated from the second tape 82 in advance. As described above, since the first tape 81 and the second tape 82 are separated in advance, the linearity of the side edge 81a of the first tape 81 is maintained (they do not become loose or twisted), and the sealing material is filled. It is possible to make it difficult for the first tape 81 to peel off at the previous stage.

  The second tape 82 is attached so as to overlap the first tape 81. More specifically, as shown in FIG. 1, the end of the second tape 82 is the first tape 82 so that the second tape 82 is closer to the surface side of the outer wall panel 11 body than the first tape 81. It is attached so as to overlap the end of one tape 81. By sticking the second tape 82 in this way, it is possible to suppress the peeling of the first tape 81 that is stuck to the wet seal material non-contact area 41, so that the wet seal material non-contact area The sticking of the sealing material to 41 can be further suppressed. In addition, intrusion of dust and the like due to peeling of the first tape 81 can be suppressed.

  Further, as described above, the primer 61 is applied to the wet sealing material contact region 42. Then, the surface to which the primer 61 is applied, that is, the surface of the wet sealing material is covered with the second tape 82. When the primer 61 is applied to the wet sealing material contact area 42, for example, dust such as ALC powder easily adheres to the primer 61. Thus, by covering the surface of the primer 61 with the second tape 82 in this way, The contamination suppressing effect of the wet sealant contact region 42 can be further enhanced.

  The primer 61 is applied after the first tape 81 is attached to the wet sealant non-contact region 41. By applying the primer 61 in this manner, the primer 61 can be prevented from protruding into the wet sealant non-contact region 41, and the outer wall panel 11 can be finished beautifully.

  The second tape 82 is attached to the side surface portion 321 and the bottom surface portion 322 of the second groove portion 32. By cutting the second tape 82 using, for example, a cutter knife (not shown) at a corner C1 (valley) formed by the side surface portion 321 and the bottom surface portion 322, the second tape The bottom surface portion 322 side in 82 can be left. As a result, it is possible to prevent the three-sided adhesion (adhesion of the bottom surface part 322 and the pair of side surface parts 321) of the wet seal material (not shown in FIG. 1) filled in the second groove part 32.

  Subsequently, a method for filling the groove 3 of the outer wall panel 11 having the above-described structure with a sealing material will be described with reference to FIGS. 2A to 2F are cross-sectional views schematically showing a sealing material filling method in the first embodiment of the present invention. 2A is the first tape attaching step, FIG. 2B is the primer applying step, FIG. 2C is the second tape attaching step, and FIG. 2D is the second step. FIG. 2 (E) is a view for explaining the first tape peeling step, and FIG. 2 (E) is a diagram for explaining the first tape peeling step.

(First tape application process)
As shown in FIG. 2A, the first tape 81 is attached to the chamfered portion 311 and the stepped portion 312 in the groove 3 between the adjacent outer wall panels 11.

(Primer application process)
Next, as shown in FIG. 2B, the primer 61 is applied to the side surface portion 321 and the bottom surface portion 322 of the second groove portion 32 (sealing pocket).

(Second tape sticking process)
After applying the primer 61, as shown in FIG. 2C, the second tape 82 is attached to the surface (side surface portion 321 and bottom surface portion 322) to which the primer 61 is applied.

(Second tape peeling process and sealing placing process)
Next, the second tape 82 is peeled off, and the sealing material 51 is driven into the second groove portion 32. The sealing material 51 is filled up to the vicinity of the back side edge 81 a of the first tape 81.

  The sealing material 51 placed in the second groove 32 has a watertight structure at the connecting portion between the outer wall panels 11. As the sealing material 51, a wet sealing material generally distributed according to the material of the outer wall panel and the like can be appropriately selected and used. Particularly, for the outer wall panel made of ALC, it is rich in flexibility, Sealing materials such as modified silicones, acrylic urethanes, and polyurethanes that are less likely to cause damage to the base material when deformed by an external force such as an earthquake are preferred. Specific examples include silicones, modified silicones, polysulfides, acrylic urethanes, polyurethanes, modified polysulfides, acrylics, SBRs, butyl rubbers, and polyisobutylenes as defined in JIS A 5758: 1997. Etc. The paste-like sealing material 51 is placed in the second groove portion 32 using, for example, a sealing gun, and then the surface 51a is pressurized using a spatula to fill the second groove portion 32 at the same time. The surface 51a is finished smoothly.

(Sealing finishing process)
Then, after the sealing material 51 is driven into the second groove portion 32, the surface 51a of the sealing material 51 is pressurized using, for example, a spatula, so that the second groove portion 32 is filled and at the same time protrudes from the second groove portion 32 The excess sealing material 51b (see FIG. 2E) is removed, and the surface 51a (finished surface) of the sealing material 51 is finished smoothly.

(First tape peeling process)
Finally, as shown in FIG. 2 (F), the first tape 81 attached to the chamfered portion 311 and the stepped portion 312 of the outer wall panel 11 is peeled off to fill the second groove 32 with the sealing material 51. Is completed.

  As described above with reference to FIGS. 2A to 2F, in this embodiment, the sealing material 51 is filled in the second groove portion 32 formed at a position deeper than the surface of the outer wall panel 11. To do. More specifically, the seal is applied to the second groove portion 32 formed at a position on the back side of the side edge 81a on the back side of the first tape 81 to be attached at a position that is a predetermined depth away from the surface of the outer wall panel 11. Material 51 is filled. Since the sealing material 51 is filled in this way, the finished surface of the sealing material 51 can be set to a position that is recessed from the surface of the outer wall panel 11 by a predetermined dimension (the depth of the first groove portion 31).

  Moreover, in this embodiment, since the 1st tape 81 has covered the wet sealing material non-contact area | region 41 as mentioned above, it can suppress that the sealing material 51 protrudes into the wet sealing material non-contact area | region 41. FIG. The outer wall panel 11 can be finished beautifully. In addition, since the second tape 82 covers the wet seal material contact area 42, contamination to the wet seal material contact area 42 is prevented, and adhesion (water stoppage) by the seal material 51 can be performed reliably. . Further, the first tape 81 serves as a standard for filling the sealing material 51, and workability can be improved.

(Second embodiment)
Then, the structure of the outer wall panel 11 in 2nd embodiment of this invention is demonstrated, referring FIG. FIG. 3 is a cross-sectional view showing a schematic configuration of the groove 3 formed between adjacent outer wall panels 11. The outer wall panel 11 shown in FIG. 3 is obtained by changing the first tape 81 and the second tape 82 in the outer wall panel 11 shown in the first embodiment into integral molding, and other configurations and functions are the first. It is the same as the outer wall panel 11 of one embodiment. Accordingly, the same portions as those of the outer wall panel 11 of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  As shown in FIG. 3, a protective tape 181 is attached to the groove 3 formed between the adjacent outer wall panels 11. More specifically, the protective tape 181 is attached from the corner 12 on the surface side of the outer wall panel 11 to the chamfered portion 311, the stepped portion 312, the side surface portion 321, and the bottom surface portion 322. In other words, the protective tape 181 is attached so as to cover the wet sealant non-contact region 41 including the chamfered portion 311 and the stepped portion 312 and the wet sealant contact region 42 including the side surface portion 321 and the bottom surface portion 322. Yes. The protective tape 181 is integrally formed of a transparent material. A separation mechanism such as a perforation 191 is provided on the boundary line between the wet sealing material non-contact area 41 and the wet sealing material contact area 42 in the protective tape 181, and the protective tape 181 can be separated by the perforation 191. It is possible. Since the protective tape 181 has transparency, it is easy to align the separation mechanism on the boundary line between the wet sealant non-contact area 41 and the wet sealant contact area 42, and the protective tape 181 can be easily and accurately separated. Can be done.

  Next, a method for filling the groove 3 of the outer wall panel 11 having the structure shown in FIG. 3 with a sealing material will be described with reference to FIGS. 4A to 4E are cross-sectional views schematically showing a sealing material filling method according to the second embodiment of the present invention. 4A is a primer coating process, FIG. 4B is a protective tape attaching process, FIG. 4C is a sealing driving process, FIG. 4D is a sealing surface finishing process, FIG. (E) is a figure for demonstrating each protective tape peeling process.

(Primer application process)
First, as shown in FIG. 4 (A), the primer is formed on the surface of the second groove 32 formed on the back side of the first groove 31 among the grooves 3 formed between the adjacent outer wall panels 11. 61 is applied. Specifically, the primer 61 is applied to the side surface portion 321 and the bottom surface portion 322 of the second groove portion 32.

(Protective tape application process)
After the applied primer 61 is dried, the protective tape 181 is applied to the wet sealant non-contact area 41 in the first groove 31 and the wet sealant contact area 42 in the second groove 32 as shown in FIG. To wear. A separation mechanism such as a perforation 191 is provided on the boundary line between the wet sealing material non-contact area 41 and the wet sealing material contact area 42 in the protective tape 181.

(Sealing placement process)
Next, as shown in FIG. 4C, the protective tape 181 attached to the second groove portion 32 is peeled off, and the sealing material 51 is driven into the second groove portion 32. The protective tape 181 is peeled off on the boundary line between the wet sealing material non-contact area 41 and the wet sealing material contact area 42 (the protruding corner C2 in FIG. 4C). The sealing material 51 is filled up to the vicinity of the back side edge 81 a of the first tape 81.

(Sealing surface finishing process)
After the sealing material 51 is placed in the second groove 32, the surface 51a of the sealing material 51 is pressurized using, for example, a spatula to fill the sealing material 51 into the second groove 32, and at the same time, FIG. The excess sealing material 51b that protrudes from the second groove portion 32 as shown in FIG. 5 is removed, and the surface 51a of the sealing material 51 is finished smoothly.

(First tape peeling process)
Finally, as shown in FIG. 4E, the filling operation of the sealing material 51 is completed by peeling off the protective tape 181 remaining in the first groove portion 31, in other words, the wet sealing material non-contact region 41. .

  As described above, as described with reference to FIGS. 4A to 4E, even when the protective tape 181 is integrally formed, the sealing material 51 filled in the groove 3 formed between the outer wall panels 11. The finished surface can be set to a position that is recessed from the surface of the outer wall panel 11 by a predetermined dimension (for the depth of the first groove portion 31).

(Third embodiment)
Then, the structure of the outer wall panel 11 in 3rd embodiment of this invention is demonstrated, referring FIG. FIG. 5 is a cross-sectional view showing a schematic configuration of the groove 3 formed between the adjacent outer wall panels 11. The outer wall panel 11 shown in FIG. 5 is obtained by changing the shape of the step portion 312 and the side surface portion 321 in the outer wall panel 11 shown in the first embodiment, and the other configurations and functions are the outer wall panels of the first embodiment. 11 is the same. Accordingly, the same portions as those of the outer wall panel 11 of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  As shown in FIG. 5, grooves 3 (first groove portion 31 and second groove portion 32) are formed between adjacent outer wall panels 11, and chamfered portions 311 are formed on both side surfaces of the first groove portion 31. Side surfaces 321 are formed on both side surfaces of the two groove portions 32. The side surface portion 321 includes a first side surface portion 321a and a second side surface portion 321b. The first side surface portion 321a is formed so as to extend substantially parallel to a direction (vertical direction in FIG. 5) perpendicular to the surface of the outer wall panel 11. The second side surface portion 321b has a surface inclined so that the size in the width direction (left and right direction in FIG. 5) of the groove 3 becomes narrower toward the back side, and one end portion thereof is the first side surface portion 321a. And the other end is connected to the bottom surface 322. The boundary between the chamfered portion 311 and the first side surface portion 321a is set to the protruding corner portion 411.

  The first tape 81 is attached to the chamfered portion 311 of the first groove portion 31. The second tape 82 is stuck across the first side surface portion 321a, the second side surface portion 321b, and the bottom surface portion 322. The second tape 82 is stuck on the primer 61 applied over the first side surface portion 321a, the second side surface portion 321b, and the bottom surface portion 322.

(Fourth embodiment)
Then, the structure of the outer wall panel 11 in 4th embodiment of this invention is demonstrated, referring FIG. FIG. 6 is a cross-sectional view showing a schematic configuration of the groove 3 formed between the adjacent outer wall panels 11. The outer wall panel 11 shown in FIG. 6 is obtained by changing the shapes of the step portion 312 and the side surface portion 321 in the outer wall panel 11 shown in the first embodiment, and other configurations and functions are the outer wall panels of the first embodiment. 11 is the same. Accordingly, the same portions as those of the outer wall panel 11 of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.

  As shown in FIG. 6, grooves 3 (first groove portion 31 and second groove portion 32) are formed between adjacent outer wall panels 11, and chamfered portions 311 are formed on both side surfaces of the first groove portion 31. Side surfaces 321 are formed on both side surfaces of the two groove portions 32. The side surface portion 321 is provided so as to be curved in a convex shape from the back side (bottom surface side) in the groove 3 toward the surface side of the outer wall panel 11. In addition, although the example which the side part 321 curved in convex shape is shown in FIG. 6, it is not limited to this, Various shapes, such as the shape bent in the middle, can be selected.

  The first tape 81 is attached to the chamfered portion 311 of the first groove portion 31. The second tape 82 is attached to the side surface portion 321 and the bottom surface portion 322. In the present embodiment, the boundary between the first tape 81 and the second tape 82 corresponds to the boundary between the wet sealing material non-contact area 41 and the wet sealing material contact area 42, and the boundary is the corner 511 ( Tanibe).

  Although FIG. 6 illustrates a state where the first tape 81 and the second tape 82 are separated, the present invention is not limited to this, and the first tape 81 and the second tape 82 are integrated. You may comprise by the shape | molded masking tape (not shown in FIG. 6). When the integrally formed protective tape is attached to the groove 3, the boundary between the wet sealing material non-contact area 41 and the wet sealing material contact area 42 shown in FIG. 6 is set at the corner 511 (valley). It is. In this way, the first tape 81 and the second tape 82 are integrally formed, so that the attaching operation can be simplified. In addition, since the boundary between the wet sealing material non-contact area 41 and the wet sealing material contact area 42 is set to the corner 511, the first corner can be obtained by applying a cutter such as a cutter knife to the corner 511 and pulling it. The tape 81 and the second tape 82 can be easily and accurately separated.

  As mentioned above, although embodiment of this invention was described, this is an illustration for description of this invention, Comprising: It is not the meaning which limits the scope of the present invention only to this embodiment. The present invention can be implemented in various other embodiments.

1: Outer wall 3: Groove (joint)
11: outer wall panel 12: corner 31: first groove 32: second groove 41: wet sealant non-contact area 42: wet sealant contact area 51: sealant 61: primer 81: first tape 82: second Tape 191: perforation 311: chamfered portion 312: stepped portion 321: side surface portion 322: bottom surface portion

Claims (10)

Between the adjacent outer wall panel main bodies, an outer wall panel in which a joint portion filled with a wet sealant is formed,
A first tape that is attached from the corner on the surface side at the end face of the outer wall panel main body to a position that is recessed by a predetermined dimension, and covers the wet sealant non-contact area,
An outer wall panel comprising: a second tape that is attached to a position on the far side of the side edge on the far side of the first tape and covers the wet sealing material contact region.   The outer wall panel according to claim 1, wherein the first tape and the second tape are separated in advance.   The outer wall panel according to claim 1 or 2, wherein the second tape is attached so as to overlap the first tape. On the end surface of the outer wall panel main body, a protruding corner portion or an entering corner portion is formed,
The side edge on the back side of the first tape is attached so as to coincide with the protruding corner portion or the entering corner portion. Exterior wall panels.   The outer wall panel according to any one of claims 1 to 4, wherein a primer is applied to the wet sealant non-contact region, and the second tape is stuck on the primer.   The outer wall panel according to claim 5, wherein the primer is applied after the first tape is attached. The joint portion has a side surface portion and a bottom surface portion that form a U-shaped concave portion in cross section,
The outer wall panel according to claim 1, wherein the second tape is stuck from the side surface portion to the bottom surface portion.   The first tape and the second tape are integrally formed of a transparent material, and a separation mechanism is provided on a boundary line between the wet seal material non-contact area and the wet seal material contact area. The outer wall panel according to claim 1.   The first tape and the second tape are integrally formed, and a boundary between the wet seal material non-contact area and the wet seal material contact area is set at a corner. The outer wall panel according to claim 1. A filling method of a sealing material filled in a joint formed between adjacent outer wall panel main bodies,
Attaching the outer wall panel according to any one of claims 1 to 9 to an outer periphery of a building to form an outer wall; and peeling the second tape;
Filling the wet sealant to the vicinity of the side edge on the back side of the first tape;
Removing the first tape;
A sealing material filling method, comprising:

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